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(
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:
Exponential Function
)? ?? ?? ???? ????? ??? ?????
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.
[1]
[2]
[3]
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- ??:
??:
???? ??? ?????? ??????:
- y = ? ?????? ????? x ? ????? ?????? ??????:
- y = ?
x
- ??? ?> ???.
?? ??
?????? ??????
???? ????:
X = y
n
?????? ?? ??????? ?????? ???? ???? ????? (exp(n. ??? ????? ???? ???? ???????? ?????? ???? ?? ????
??? e ?? ?????? ??????? ??????
??? ?????
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???? ?????
[
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??????? ?????? ?????? ?????? ?? ???? ???? ??????? ??? ????.
?? ???? ?????? ??????:
- a
0
= 1
- a
1
= a
?????? ???????
?????? ?????? ??
??????????
(log) ?? ?????? a ??? ????
??? x ??? ???? ?????? ??? ?????:
??? x ??? ?????. ????? log ?? ??? ??????? ????? ???
??????????
?????? 10.
???? ????? ?????? ??????
??? ?? ???? ???
:
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- ...?...
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.
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?? ?????? ??? ?????? e ??
??????????? ??????? ????? ???? ?? ??????
ln
? ????? ≪?????????? ???????≫.
?????? ?????? ?????? e ?? ?????? ??????? ???? ???? ???????:
?? ???? ?? ???????? ????????? ?? ?????? ??????.
?????? ?????? ?????? ??????? e
[
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???? ?????? ?????? ????? ????
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??
?????? ??????? e
(?????? ??? ?????? ??????? ?????? ??????? ≪??≫ ???? ?? ??????? ?? ?????? e).
????? ?????? ??????????:
- (x = exp(n
??? n ?? ????? ??????
?????? ???????
?????? ≪?≫
????? ????? 2.718281828
????? ?? ?????? ??????? ????? ?????????.
?? ????????:
x = e
n
?? ????? ?????? ?????? ?????? ??????? e ??????? ???????:
???? ?????
?????
???????? ????????.(ln a ?? ?????????? ??????? ?????? ??????? e ???? ?????????? ?????? 10)
?????? ?????? ?????? ??????? e ????? ???? ??
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(???: ????? ????? ????? ????????? ?? ??? ????? [???? ?????]) ? ???
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(???:
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)
???
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??? ?????? ???? ????
????
???? ?????? ?????? ?? ????? x = e
n
??? n = t.c ??? ????? ??? ??????. ???? ????? ??? ????? ?????? ?? ????? ???? ???? ????? ?????? ?? ????? ??? ?????? ?????? ???????? ?? ??? ???? ???????? ?? x = e
-t.c
.
- ????? ???? n ?????
???? ?? ?????
? ???? ????? ???? ?? ?????? ??? ???? ?????? ????????? ??? ???? ?????? ???? n = t.c ??? t ?????
?????
? c ????? ?????? ?????? [1/?????] ? ????? ?? ???? ?????? ???? ?? ?????.
- ?????? ????? ??????? ????? ?????? ?????? ?????? ?????? e. ????? ??? ????? ?????? ?????????? ??????? ??? ?????? ?? ????? ??? ????? ?????.
??????? ?????? ?????? ?????? ?????? e
[
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]
???? ????? ?????? ?????? ?????? e ???? ??? ???????? ??? ??? ??????? ???? ??????? ????????
??????? ???
:
??? ????? ???? ????? e
x
??? ???????? ???????:
?? ???? ????? ??????? ???????:
????? ?????? ?????? ?????? e
[
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]
????? ?????? ?????? ?????? e ?????? ?????? ???????? ?????????:
?????? ????? ??? ?????:
???? ?????? ?????? ?????? ??????? e ?? ??????? ???? ??? ???? ???????. ???? ???? ????? ?????? ?????? ???????? ????? ?? ??? ???????? ?????????. ????? ????
????:
??? ln a ?? ?????????? ?????? ??????? e ?????? ????????:
??? ??? ???????? ?? ???? ??????? ?????????? ??????? ??? ???????? ????? ???? ??? ???? ?????
e
?? ???? ??????? ?????? ≪??????≫ ?? ????.
???????? ????????? ?? ?????
??? a ? b ????? ???????
[
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]
?? ?? ??? ???????? ????????? ????? ?? ???? ???? ????
???
????? ?????? ???? ????????? ??? ?????? ???????
????:
?????
?????? ????????
????? ?????
:
??????? ??? ???????? ?????? ??? ??????? (N(t ???? ?? ????? ??? ???? ????? t ?? ????? ????? ?????? N_0 ????? ??? ??????? (??? t = 0).
??????:
??? ???
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? ??????
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??
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???
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-40 ????. ??????? 1/
?????
.
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[
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???
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?????
[
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[
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????? ??????????: ?????
????????
??? ????? ????? ????????? ?????? ?? ????? ??? ????? ??????? ????? ????????. ?? ????? ??????? ???????? ????? ?????? ????????.
?? ???? ??? ?????????? ??? 3 ????????:
N = 2
3
N = 8
???? ????? ????? ??? ?????????? ??? 6 ????????? ???? ???????? ??????:
N = 2
6
N = 64
?? ?? ??? ?????????? ??????? ?? ?????? ???? ??? ??? ???????? ???? 64 ???????.
????? ?????? ?????? ?????? ??????? e
[
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]
??????? ???????:
???? ??? ???? ???? ????? 4 ?????? ????? ??? ??? ???? ??????? ??? ??? ????? ??? ??? ???? ????? ?????? ?????? 2,5 %?
???? ???????? ?????:
N = 4. e
0,025.6
??:
- (N = 4. Exp(0,025.6
????????:
- ????? ???? N = 4,647 ??? 6 ?????.
???? 3 :
????? ??????:
??????
????
??? ?????? ?? ???? ??????? ?????? ???? ????? 2 ?0 % ?????? ??? ???? ????? ??? 170 ????.
N = 1. e
0,002.170
N = 1. e
0,34
????????
???????
???? ??? ????? ????? ????? 4 ?1 ???? 170 ???.
???? 4:
????
?????
?????? ????????? ?? ??? ?????. ???????? ??:
??? ???????? h ????????? ??? ??? ?????
.
(????
???? ????? ?????????
)
???? ?????
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